Side bearing for railway-cars.



No. 598,l'7af" Y Patented Apr. v22, |902.`

F. n. coNwALL. A

SIDE BEARING FOR RAILWAY CARS.

hcatzon led Feb. 28, 902

(N0 Model.)

UNrraD STATES AreN'r Ormes.

FREDERICK R. CORNWALL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO CHICAGO RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.

SIDE BEARING F-QRv RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 698,176, dated April 22, 1902. Application filed February 28, 1902. Serial No. 96.096.' v(No model.)

To @ZZ whom, t may concern:

Be it known that I, FREDERICK R. CORN-A WALL, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain newand useful Improvement in Side Bearings for Railway-Cars, of which the following is a full, clear, and exact description, such as will enable others skilled y in the art towhich itappertains to make and 1o use thesame, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a cross-sectional view through my improved side bearing. Fig. 2 is a longitndinal sectional view through the same,and

Fig. 3 is a detail view showing the supporting block or casting in which the rollers are mounted.

Thistinvention relates to a new and'useful zo improvement in side bearings for railwaycars, the object being to construct the device in a simple and cheap manner, reducing the number of parts entering into the completed bearing, and at the same timeproducing an efficient, strong, and durable bearing of the character described.

With these objectsin View my invention consists in the construction, arrangement,

and combination of the several parts, all as 3o will hereinafter be'described andafterward pointed out in the claims.

In the drawings, A indicatesa casting,which is preferably provided with attaching lugs or iianges 1 and parallel side walls 2.v These 3 5 side walls have their inner faces formed with continuous endless grooves for receiving the axles of the rollers.

3 indicates the rollers, which are formed with reduced axles at their ends', fitting in said 4o endless grooves and forming an endless chain of rollers supported in positionfwholly by their axles. By mounting the rollers in this manner the peripheral speed thereof is suffi-j cient to enable the body-bearing (not shown) to travel a greater horizontal distance than VAis in contact. Aportion of the endless grooves in the inner ment of the rollers.

the displacement of the rollers with which it The top walls of the upper facesof theparallel side walls of the casting are formed by removable plates 4, which are 5o preferably riveted in position.

These plates are provided only to prevent vertical displace- Itis obvious that where the rollers are cylindrical the axles should be of the same diameter and that the vertical grooves receiving the axles should be of the same dimensions. However, where it is desired that the rollers shall be coned to accommodate the arc of movement of `the bodybearing the'groove in the outer wall can be 6o made of greater length circnmferentially to receive enlarged axles at the outer ends of the rollers. In this manner the two walls shown parallel in the drawings can also be curved at the arc of a circle described from the kingpin ofthe truck. l

i I am aware that many minor changes in the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and 7o described Without in the least departing from the nature and principle of my'invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is 75 1. In a side bearing for cars, the combina- Y tion with supports 'formed with endless. grooves in their inner faces, and an endless chain ofrollers whose axles are received 'in said grooves, Vwhereby said rollers are sup- 8o ported wholly by'their axles; substantially as described. f l A 2. In a side bearingfor'. cars, thecombination with walls formed with endless grooves ,in their inner faces, of an endless chain of `rollers formed with axles of smaller diameter than the body portion of the rollers, said axles being receivedin said grooves for supporting the rollers in position, whereby'the circumferential speed of the rollers exceeds 9o their horizontal displacement; substantially as described.

3. In e side bearing: for eers, the Combinathe upper portion of said grooves; substan- Io tially es described. In testimony whereof I hereunto afx my tion with e casting formed with upwardly-exl signature, in the presence of two Witnesses, 5 tending Walls having grooves in their inner this 21th day of February, 1002.

faces, of an endless chain of rollers whose* FREDERICK R. CORNVVALL.

Axles are received in said grooves, said axles lVitnesses: wholly supporting the rollers in position, and GEORGE BAKEWELL, removable plates which form the top walls of LENORE WILSON. 

